Leonardo's Dream Machines

  • 2005
  • TV-PG

A two-part attempt to construct Leonardo's giant crossbow and glider concludes with a focus on the “flying machine.” The modern-day builders have a problem---no mechanism for pilot control---until they find a drawing that one enthusiastic expert calls “the Mona Lisa of engineering.” As for the crossbow, its builders stumbled with their adaptatio (more…)

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